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BAGASSE BRIEF.. No. 423.140. Patented Mar.' 11, 1890.

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M. ESPINOSA.

BAGASSB DRIBR.

No. 423,140. Patented Mar. l1, 1890.

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terial to be treated is delivered from the- UNITED STATES PATENTOFFICE..

MANUEL ESPINOSA, OF MATANZAS, CUBA.

' BAGASSE-f-DRIER.

SPECIFICATION forming part of Letters Patent No. 423,140, dated March11, 1890.

Application tiled July l0, 1889. Serial No. 317,083. (No model.)

To all whom t may concern.'

Be it known that I, MANUEL ESPINOSA, a citizen of theUnited States,residing at present in Matanzas, Cuba, have invented a new and ImprovedBagasse-Drier, of which the following is a full, clear, and exactdescription.

This invention relates to an apparatus designed for use in the drying ofbagasse or analogous material, the main objects of the invention beingto so arrange the drier that heat will be delivered above and below anadvancing stratum of bagasse, provision being made for the agitation ofthe bagasse and for the carrying Off Of the vapor produced by the heat;and to the ends named the invention consists of certain novel con'-structions, arrangements, and combinations of elements to be hereinafterfully described, and specifically pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a sectional plan view of my improved bagasse-drier. Fig. 2is a sectional elevation of the drier, and Fig. 3 is an enlargedcross-sectional view on line :c so of Fig. 2.

In constructing the drier forming' the subject-matter of thisapplication I build a long housing 10, that is preferably of brick, andin this housing I mount drums l1 and 11a, which serve as supports for anendless earrier-belt 12, said belt being preferably made of metallicsections having upturned flanges, which overlap and are rivetedtogether, as shown in the drawings, spaces being left for the passage ofthe teeth of sprocket-wheels 13, that are carried by the drums.

The endless belt 12 is inclosed in a metallic casing 1a, the walls ofwhich easing are, however, pierced by flues l5, which extend between thetwo lengths of the belt 12. In order that the upper length of the beltmay be supported in a substantially horizontal position, I mountbrackets 16 upon the ilues l5, which said brackets carrysupporting-wheels 17, upon which the upper length of the belt rests, andin order that the lower length of the belt may be upheld I provide otherbrackets 18, which carry supporting-wheels 19, said brackets 18 beingmounted, as best shown in Fig. 2. The bagasse or other niamill to anendless carrier-belt 20, which in turn delivers the bagasse to a chute21, that leads downward and delivers it to the belt 12, as shown in Fig.2.

At one end of the housing 10, I arrange a furnace and carry the productsof combustion from such furnace through a flue 22 to the first of theseries of the iiues 15, a barrier 23 acting to direct a portion of thepro ducts of combustion through said tlues, another portion of theproducts passing upward over the top of the metallic casing whichsurrounds the belt, an upper barrier 24 directing such products ofcombustion over the top of the casing. Other barriers 23? and 2a, 23b24th, dac., are arranged as illustrat-ed, so that the products ofcombustion are forced to take the directions indicated by the arrowsshown in Fig. 1 until they iinally reach the stack 25.

During the process of drying the belt 12 is advanced by applying powerto the shafts of either one of the drums, and as the belt advances thebagasse or other material carried thereby is beaten up by beaters 2G,said beaters consisting Of iiexible arms that are mounted upon hubscarried by a transverse shaft, a rotary motion being imparted to saidshaft by means of driving-chains that are not shown in the drawings.

In order that the vapor generated by the heat passing above and belowthe stratum of bagasse that is being dried may be carried off, I provideexit-tubes 40, which lead up through the roof of the housing 10 from themetallic easing 14, these tubes being by preference provided with capsIl, as will be readily understood.

I-Iaving thus described my invention, I claim as new and desire tosecure by Letters Patent- The combination, with the housing, a casingwithin the same and spaced therefrom, and an endless carrier travelingin the casing, of iiues extending through the casing and communicatingat the ends with the space within the housing exterior to the casing,and barriers or deflectors in said intervening space for imparting atortuous or serpentine draft, substantiallyas set forth.

MANUEL ESPINOSA.

Witnesses:

EMILIO ESPINOSA, EDWARD KENT, J r.

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